Question 1

How do I choose the right clamping force for an injection moulding machine?

Accepted Answer

Clamping force (tonnage) is calculated by multiplying the projected surface area of the moulded part (including runner system in sq. cm or sq. inches) by the cavity pressure required for the polymer (typically 2 to 4 tons per sq. inch for PP/PE, and up to 5-8 tons for engineering polymers like PC/Nylon). For example, a 100 sq. inch projected area part requires approximately 250 to 350 tons of clamping force.

Question 2

What is the advantage of servo-driven hydraulic injection moulding machines?

Accepted Answer

Servo-driven hydraulic machines adjust motor speed and pump displacement in real-time according to hydraulic pressure and flow demands. This reduces electrical power consumption by 30% to 70% compared to traditional fixed-pump systems, reduces hydraulic oil temperatures, and prolongs machine life.

Question 3

What warranty and after-sales support do suppliers on PlastoDeal provide for new machines?

Accepted Answer

Verified machinery manufacturers on PlastoDeal typically provide 1 to 2 years of comprehensive warranty covering the hydraulic pump, servo motor, PLC controller, and clamping platen, alongside on-site installation, commissioning, and operator training across India.

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